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Finding the Third Proportional to 4,145,272 and 8,920,399

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Solution

The third proportional to 4,145,272 and 8,920,399 is: 19,196,211.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,145,272 : 8,920,399 = 8,920,399 : x
  2. Step 2: Convert to fraction form
    4,145,272/8,920,399 = 8,920,399/x
  3. Step 3: Cross multiply
    4,145,272x = 8,920,399 × 8,920,399
  4. Step 4: Simplify right side
    4,145,272x = 79,573,518,319,201
  5. Step 5: Solve for x
    x = 79,573,518,319,201/4,145,272
  6. Step 6: Final answer
    x = 19,196,211.57

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.